/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
.file "setjmp.s"
/*
* The UCB setjmp(env) is the same as SYSV's sigsetjmp(env, 1)
* while _setjmp(env) is the same as SYSV's sigsetjmp(env, 0)
* Both longjmp(env, val) and _longjmp(env, val) are the same
* as SYSV's siglongjmp(env, val).
*
* These are #defined as such in /usr/ucbinclude/setjmp.h
* but setjmp/longjmp and _setjmp/_longjmp have historically
* been entry points in libucb, so for binary compatibility
* we implement them as tail calls into libc in order to make
* them appear as direct calls to sigsetjmp/siglongjmp, which
* is essential for the correct operation of sigsetjmp.
*/
#include <sys/asm_linkage.h>
ANSI_PRAGMA_WEAK(longjmp,function)
ENTRY_NP(setjmp)
mov %o7, %g1
mov 1, %o1
call _sigsetjmp
mov %g1, %o7
SET_SIZE(setjmp)
ENTRY_NP(_setjmp)
mov %o7, %g1
clr %o1
call _sigsetjmp
mov %g1, %o7
SET_SIZE(_setjmp)
ENTRY_NP(longjmp)
mov %o7, %g1
call _siglongjmp
mov %g1, %o7
SET_SIZE(longjmp)